REFLECTOR: aileron trim

[Lou Stedman]

Thanks very much Al. I will check this out.

Lou Stedman
Velocity N7044Q
Olean, NY
  ----- Original Message ----- 
  From: Al Gietzen 
  To: 'Velocity Aircraft Owners and Builders list' 
  Sent: Monday, January 07, 2008 11:02 AM
  Subject: Re: REFLECTOR: aileron trim


  I have one area that puzzles me. That is the aileron, cord and spring, trim set up. It may be that my springs are old and have lost their strength but I am not sure. When I engage the electric motor, on the ground, it runs but nothing happens to the ailerons. I do not see any deflection up or down. I am not sure if this is normal or weather something needs replacing. Any help would be appreciated.



  Lou Stedman

  Lou;



  I found that three turns around the capstan and higher tension on the springs makes it work pretty well. Getting enough tension on the stock springs caused some deformation with time.  I replaced the original springs with ones that have a higher spring rate; something close to double that of the stock springs.  Unfortunately, I have not been able to find the specs for the springs (misplaced my notes and the plastic packaging). FWIW; they are SS, about ½" o.d, 2 ½" long, and the wire diameter is maybe .030.  I recall the spring rate being about 3 ½ lbs/in. I bought them at Home Depot, but McMaster-Carr has a good selection, and give the specs for the various sizes.



  One of the reasons for replacing the springs was to overcome the drag of the TruTrak AP servo motors.



  Al



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